21257108

素因数分解:

$2^2\times {\mathrm{113}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:607

約数の個数: 24

約数和(自身を含む): 37920960

約数和(自身を除く): 16663852

約数列:

[1, 2, 4, 113, 131, 226, 262, 359, 452, 524, 718, 1436, 14803, 29606, 40567, 47029, 59212, 81134, 94058, 162268, 188116, 5314277, 10628554, 21257108]

約数ペア:

[(1, 21257108), (2, 10628554), (4, 5314277), (113, 188116), (131, 162268), (226, 94058), (262, 81134), (359, 59212), (452, 47029), (524, 40567), (718, 29606), (1436, 14803)]